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jeffrey23
jeffrey23
Associate III
April 27, 2010
Question

Is it possible to use GPIO EXTI and Output pins at the same port ?

  • April 27, 2010
  • 3 replies
  • 878 views
Posted on April 27, 2010 at 16:12

Is it possible to use GPIO EXTI and Output pins at the same port ?

    This topic has been closed for replies.

    3 replies

    brazov22
    brazov22
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 15:08

    If you configure PC6 as pull-up with interrupt pin, you'd configure:

     EXTI->CR1 = 0x20;       // Port C falling edge only

    so forcing a transition from vdd to gnd you'd go inside PC interrupt routine. Anyway this doesn't explain why it works on PD6.

    brazov2

    jeffrey23
    jeffrey23Author
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 15:08

    The original post was too long to process during our migration. Please click on the provided URL to read the original post. https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I6Y9&d=%2Fa%2F0X0000000bqU%2FxiLWzq5oi.fFj2jPU11fjs93C2dmlVloDgn.EDN0ISQ&asPdf=false
    brazov22
    brazov22
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 15:08

    Hi,

    yes you'd be able to configure PC6 as EXTI and PC5 as output.

    Please post part of your code where you configure PC6 and PC5 GPIO.

    brazov2

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